add workflow to close stale issues (labeled with waiting for feedback)

Author: umbynos

.github/workflows/close-stale-issues.yml

@@ -0,0 +1,17 @@
+name: Close stale issues
+on:
+  workflow_dispatch
+
+jobs:
+  stale:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/stale@v3
+        with:
+          stale-issue-message: 'This issue has been marked as stale because it has been open 14 days with no activity. Remove stale label or comment, otherwise it will be closed in 7 days '
+          close-issue-message: 'This issue has been closed becasue has been stale for 7 days. If you think this issue deserves some attention feel free to reopen it'
+          days-before-stale: 14
+          days-before-close: 7
+          days-before-pr-close: -1 // never close PR
+          only-labels: waiting for feedback // only issues marked with this label will be affected
+          debug-only: true